A simple inorganic-solvent-thermal route to nanocrystalline niobium diboride

被引：27

作者：

Ma, Jianhua ^{[1
,2
]}

Du, Yihong ^{[3
]}

Wu, Meining ^{[1
]}

Li, Guoxing ^{[1
]}

Feng, Zhiqing ^{[1
]}

Guo, Ming ^{[1
]}

Sun, Yixiu ^{[1
]}

Song, Weihua ^{[1
]}

Lin, Mingjin ^{[1
]}

Guo, Xule ^{[1
]}

机构：

[1] Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325027, Zhejiang, Peoples R China

[2] Wenzhou Univ, Adv Mat Res Ctr Wenzhou, Nanomat & Chem Key Lab, Wenzhou 325027, Zhejiang, Peoples R China

[3] Wenzhou Univ, City Coll, Wenzhou 325027, Zhejiang, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 468卷 / 1-2期

关键词：

Nanostructured materials; Niobium diboride; Chemical synthesis; X-ray diffraction; Thermal analysis; SOLID-STATE REACTION; COMBUSTION SYNTHESIS; NBB2; BORIDE; SUPERCONDUCTIVITY; REDUCTION; POWDER; TIB2;

D O I：

10.1016/j.jallcom.2008.01.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nanocrystalline NbB2 has been prepared via a simple inorganic-solvent-thermal route by the reaction of metallic magnesium powders with niobium pentoxide and boric acid in an autoclave at 650 C X-ray powder diffraction pattern indicated that the product was hexagonal niobium diboride (NbB2), and the cell constant was a=3.115 angstrom and c=3.266 angstrom. Scanning electron microscopy image showed that it consisted of particles with an average size of about 30 nm. the product was also studied by BET and TGA. It had good thermal stability and oxidation resistance below an important role in the formation of nanocrystalline niobium diboride with a narrow particle size distribution. (C) 2008 B.V. All rights reserved.

引用

页码：473 / 476

页数：4

共 18 条

[1]

Adams R.M., 1964, BORON METALLO BORON

[2]

Andrieux L, 1929, CR HEBD ACAD SCI, V189, P1279

[3] Low temperature synthesis of NbB2 nanorods by a solid-state reaction route [J].

Cai, PJ ;

Yang, ZH ;

Shi, L ;

Chen, LY ;

Zhao, AW ;

Gu, YL ;

Qian, YT .

MATERIALS LETTERS, 2005, 59 (28) :3550-3552

[4] SUPERCONDUCTIVITY - TRANSITION TEMPERATURE PEAK BELOW 4 ELECTRONS PER ATOM [J].

COOPER, AS ;

CORENZWIT, E ;

LONGINOTTI, LD ;

MATTHIAS, BT ;

ZACHARIASEN, WH .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1970, 67 (01) :313-+

[5] SEARCH FOR SUPERCONDUCTIVITY BELOW 1-K IN TRANSITION-METAL BORIDES [J].

LEYAROVSKA, L ;

LEYAROVSKI, E .

JOURNAL OF THE LESS-COMMON METALS, 1979, 67 (01) :249-255

[6] SYNTHESIS OF ULTRAFINE NBB2 POWDER BY RAPID CARBOTHERMAL REDUCTION IN A VERTICAL TUBULAR REACTOR [J].

MAEDA, H ;

YOSHIKAWA, T ;

KUSAKABE, K ;

MOROOKA, S .

JOURNAL OF ALLOYS AND COMPOUNDS, 1994, 215 (1-2) :127-134

[7] SYNTHESIS OF NIOBIUM BORIDE POWDER BY SOLID-STATE REACTION BETWEEN NIOBIUM AND AMORPHOUS BORON [J].

MATSUDAIRA, T ;

ITOH, H ;

NAKA, S ;

HAMAMOTO, H .

JOURNAL OF THE LESS-COMMON METALS, 1989, 155 (02) :207-214

[8] Preparation of TiB2 and ZrB2 influence of a mechanochemical treatment on the borothermic reduction of titania and zirconia [J].

Millet, P ;

Hwang, T .

JOURNAL OF MATERIALS SCIENCE, 1996, 31 (02) :351-355

[9] CHEMICAL VAPOR-DEPOSITION OF NIOBIUM DIBORIDE (NBB2) [J].

MOTOJIMA, S ;

SUGIYAMA, K ;

TAKAHASHI, Y .

JOURNAL OF CRYSTAL GROWTH, 1975, 30 (02) :233-239

[10] Floating zone growth and high-temperature hardness of NbB2 and TaB2 single crystals [J].

Otani, S ;

Korsukova, MM ;

Mitsuhashi, T .

JOURNAL OF CRYSTAL GROWTH, 1998, 194 (3-4) :430-433

← 1 2 →